Check out dreambox, this interactive math program changes with your child as they learn. It is important that students use this program independently and is most helpful when done for approximately 20 minutes.
RAZ Kids is an online reading program. I suggest that students read the books before listening to them and answering the comprehension questions. Try a goal of reading one per day!
The Elementary Internet Toolbar (EIT) is a wonderful resource for many websites and grade specific curriculum. It is also available in both English and French.